wingard



(No Model.) 3 sheetssheet 2.

y A. WIN GARD.

DRY ORB; PULVBRIZBR AND GIONGBNTRATOR. No. 289,791. Patented Dec. L1,v 1883.

3 Sheets-.Sheet 3.

(No Model.)

A. WIMARD.-

DRY ORE PULVERIZBR AND GONGE-NTRATOR.

No.- 289391'. Patented Deo. 4,1883.-

I'E- A '1.

@Ntra Smarts trice.

firmar DRY-ORE .PULvERlzgR AND conci-:mfrmires.

SPECIFICATION forming part of Letters Patent N o. 289,791, dated December 4, 1883,

Application filed September 16, 1882. (No model.) Y

To all whom it may concern:

Be it known that I, ADAM WINGARD, of the city and county of San Francisco, in the State of California, have made and invented certain new and useful Improvements in Dry- Ore Pulverizers and Concentrators, and I do hereby declare that the following is a full, clear, and exact description of the same, yreference being had to the accompanying drawings.

My invention relates to improvements in machines for treating ores in a dry state orr without water, to disintegrate the particles and separate the mineral from dirt and other worthless matter. It has for its obj ect to provide a machine which has the capacity to work upon metalliferous earth in a dry condition, and is thereby adapted for use in localities where the supply of water is scarce or cannot be had. This object I attain by constructing` a machine for operation according to the following description, in which reference is made to the accompanying` drawings by letters.

Figure l is an elevation in vertical longitudinal section vof a machine constructed in accordance with my invention. Fig. 2 is an end elevation taken from the rear of Fig. l, and is partly in vertical section. Fig. 3 is a longitudinal section of the table. Fig. 4 is a view taken from the rear end thereof, and Fig. 5 is a detail view of the striker.

A is an open conical barrel, having longitudinal slits or openings formed by securing together a number of narrow staves or bars,

c c. It is xed upon a horizontal shaft, w, from which it receives rotation, and is surrounded by a stationary case which incloses it from end to end, the case being open at the larger end. The matter to be treated is fed in at one end, and, by a rapid rotation given to the barrel and the tumbling and falling of the material, pulverization of the lumps and particles results from the centrifugal action, and all matter ne enough to pass through the openings is thrown out into the surrounding stationary chamber. A spiral flange, cl, fixed to the outside surface of the revolving barrel,

l runs in close proximity to the bottom of the stationary chamber and moves the pulverized matter outward4 to the discharge end of this chamber. At this point of discharge a quicksilver-pocket, E, is formed by enlarging or carrying out the lower portion of thel larger end of the stationary chamber, just inside of the rim or fiange j. This structure is combined withand operates in relation to a vibrating concentrating-table and an elevatorcylinder for acting upon all the matter that may not receive proper amalgamation in passing from the endof the stationary chamber.

F is a conical drum or chamber, somewhat larger at its smaller end than the outer end of the stationary chamber, so as to overlap the 'rimj-of the last-named chamber, and has a number of pockets, g g, by which the matter discharged into the chamber is raised and dropped through the center and upon a suspended shaking table, PJ For this purpose the drum F has a rotary motion imparted to it, but the motion is less rapid than the motion of the pulverizing-barrel. The matter discharged from the pockets g receives the concentrating action of the shaking table, and the refuse matter therefrom falls upon the lower end of an inclined grating or grizzly, J, whence it is carried out of the machine. All matter not capable of being reduced in the revolving barrel is discharged upon the upper end of this grizzly, and -is conducted out of the drum without mixing with the pulverized matter thrown out from the stationary chamber.

The general construction of this machine is as follows: Vithin a suitable frame-work, y y z, I mount a horizontal shaft, fw, in bearings' fw w, and upon it, at one end, I fix the tapering barrel A. This barrel is constructed 'of a number of rectangular bars with tapering sides, which are laid and secured at regular distances apart, and in close order upon and around two circular open heads, d d. Such construction gives a barrel with longitudinal openings a between the staves all around. The chamber D is formed of a surrounding shell or case supported on uprights az, and projecting beyond each end, of the barrel, so as to 'afford at the front a closed chamber, 13,- and at the rear a rim or flange, j, to t into the end of a conical drum forming the elevator-chamber. Around the outside of the barrel a spiral ilange,d, is bolted in a position to run close to the inside ofthe stationary chamber, and engage with and move forward the matter thrown into this space from the interior ofthe barrel. From a central opening IOO sleeve, K, eXtends to and surrounds the front end of the barrel, and intol it is carried the' end of a chute or hopper, L, through which ore is fed into the barrel. The rear end of this chamber is provided with a pocket,'E, which is formed on the lower half-circumfer-l ence of the chamber, so as to extend below the level of its bottom.

F is the revolving elevator-cylinder, which is supported on friction-rollers N, and is driven by means of a gear-ring bolted on the circumference thereof, at its rear end, and a pinion, u, on the driVingshaft. This driving-shaft w is mounted in boxes p p, upon the top of the frame and gives motion to the shaft w,- also through the medium of the pulley F F and belt l. The rotary motion ofthe elevatorcham ber is employed to raise the pulverized stuff discharged by the worm d" from the stationary chamber and throw it upon the table, and, therefore this motion is much less rapid than the rate of speed of the pulverizing-barrel.

g g are the elevator pockets or receptacles for lifting and dropping the material. Their construction and arrangement are shown in Figs. l and 2.

l? is the shaking table for concentrating the mineral particles contained in the material discharged into the elevating-chamber. It has a peculiar rocking motion produced by raising its front and rear ends alternately, and also a trembling or shaking movement from the action of strikers R, which are operated under its bottom. The cams P', for rocking the table, are carried on a short shaft, T, held in bearings t* at each end-one in the frame and the other in a stationary hanger, T bolted to the upper part of the case and driven from the main shaft by means of the gear and pinion s s. The beaters or strikers B are simple levers having their outer arms shorter and lighter than the others, and provided with curved projecting ends against which the front and rear ends ofthe table are caused to strike in their alternate downward movements, thus throwing up the longer and heavier ends of the levers against the bottom of the table-surface.v The shaft T is utilized as a means for directing several jets of air into the lower part y of the revolving barrel and across the surface of the quicksilver-receptacle, for the purpose of preventing the accumulation of matter and the consequent clogging at such point. It is therefor made hollow, and is provided with several perforations, a u', at the inner end, while the outer endis adapted to receive the end of an air-supply tube, c. The concentrating-table has an inclination to the rear, and is made of a piece of animal-hide with the hair laid uppermost. The trembling and rocking motions which are imparted to the table l? cause the heavier particles to settle upon it, while the lighter and less valuable are thrown off. The hairy side of the skin aids in this, as it presents a rough surface to hold theheavy particles when once they are Settled.

As thus constructed the operation of the machine is as follows: The material is fed into the barrel at the smaller end, and power being applied to the shaft w, the contents of the barrel receives pulverization, and is'discharged through the slits into the outer cham ber, whence it passesover and in contact with the quicksilver in the receptacle. From the rear end of the chamber it is then discharged into the revolving elevator-chamber, where, being caught by the buckets, it is raised up and dropped down upon the shaking table, where the mineral particles that have escaped amalgamation are extracted from the refuse by settling and remaining on the table l?, while the lighter and less valuable matter is carried or thrown on".

The lumps and other particles that are not sufficiently reduced to pass through the barrel are discharged from the machine over the grizzly J.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

l. The combination of the pulverizing-barrel A, the stationary inclosing-case D, the feed-hopper L, and the revolving elevatorchamber F, substantially as-described.

2. The combination, with the pulverizingbarrel A, formed of staves or rods a a', with spaces between them, and having the spiral iiange d', of the outer stationary case having the feed-hopper and the pocket E, substantially as described.

3. The combination, with, the pulverizingbarrel A and the stationary case D, having the feed-hopper L, of the elevator-chamber F, having the pockets, and means for rotating the barrel and elevator-chamber at different rates of speed, substantially as described.

4L. The combination,with the elevator-chamber F, having pockets g and means for rotating it, of the concentrating-tabled?, suspended in central position within chamber-space, and means for rocking or shaking said table, substantially as described.

5. The combination, with the conical pulverizing-barrel A, of means for givingdit a rotary motion, means for feeding the material into it at the smaller end, the inclosing-case to receive the matter discharged through the aperture by the rotation of the barrel, and the inclined grating J, for receiving the matter passing out from the interior of the barrel, substantially as described.

6. The combination,with the elevator-cylin- 'der F, having rotary motion, as described, of

IOO 

